<template>
  <div>
    <!-- 商品分类三级列表 -->
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--bread：面包屑，带有x的结构的-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a href="#">全部结果</a>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!-- 分类的面包屑 -->
            <li class="with-x" v-if="searchParams.categoryName">{{ searchParams.categoryName}}<i @click="removeCategoryName">×</i>
              <!-- 关键字的面包屑 -->
            <li class="with-x" v-if="searchParams.keyword">{{ searchParams.keyword}}<i @click="removeKeyword">×</i>
              <!-- 品牌的面包屑 -->
            <li class="with-x" v-if="searchParams.trademark">{{ searchParams.trademark.split(':')[1]}}<i @click="removeTrademark">×</i>
              <!-- 平台属性的面包屑 -->
            <li class="with-x" v-for='(attrval,index) in searchParams.props' :key='index'>{{ attrval.split(':')[1]}}<i @click="removeAttr(index)">×</i>
            </li>
          </ul>
        </div>

        <!--selector-->
        <SearchSelector @trademarkInfo='trademarkInfo' @attrInfo='attrInfo' />

        <!--details-->
        <div class="details clearfix">
          <!-- 排序导航 -->
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <li :class='{active:isOne}' @click='changeOrder(1)'>
                  <a>综合<span v-show="isOne" class="iconfont" :class="{'icon-jiantou_xiangshang':isAsc,'icon-jiantou_xiangxia':isDesc}"></span></a>
                </li>
                <li :class='{active:isTwo}' @click='changeOrder(2)'>
                  <a>价格<span v-show="isTwo" class="iconfont" :class="{'icon-jiantou_xiangshang':isAsc,'icon-jiantou_xiangxia':isDesc}"></span></a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 产品列表 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="good in goodsList" :key="good.id">
                <div class="list-wrap">
                  <div class="p-img">
                    <router-link :to='`/detail/${good.id}`'><img v-lazy="good.defaultImg" /></router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>{{ good.price }}</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <a target="_blank" href="item.html" :title="good.title">{{
                      good.title
                    }}</a>
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>2000</span>人评价</i>
                  </div>
                  <div class="operate">
                    <a href="success-cart.html" target="_blank" class="sui-btn btn-bordered btn-danger">加入购物车</a>
                    <a href="javascript:void(0);" class="sui-btn btn-bordered">收藏</a>
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!-- 分页器 -->
          <Pagination :pageNo='searchParams.pageNo' :pageSize='searchParams.pageSize' :total='total' :continues='5' @getPageNo='getPageNo' />
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import SearchSelector from "./SearchSelector/SearchSelector";
import { mapGetters, mapState } from "vuex";
export default {
  name: "Search",
  components: {
    SearchSelector,
  },
  data() {
    return {
      //带给服务器的参数
      searchParams: {
        //一级分类的id
        category1Id: "",
        //二级分类的id
        category2Id: "",
        //三级分类的id
        category3Id: "",
        //分类名字
        categoryName: "",
        //关键字
        keyword: "",
        //排序
        order: "1:desc",
        //分页器用的：代表当前页数
        pageNo: 1,
        //每页显示数据个数
        pageSize: 5,
        //平台售卖属性操作带的参数（筛选条件）
        props: [],
        //品牌
        trademark: "",
      },
    };
  },
  //在组件挂载完毕之前执行一次
  beforeMount() {
    //在发请求之前，把接口需要传递的参数进行整理（在服务器发请求之前，把参数整理好，服务器就会返回查询的数据）
    //Object.assgin:ES6新增的语法，合并对象
    Object.assign(this.searchParams, this.$route.query, this.$route.params);
  },
  mounted() {
    //在发请求之前 将变化后的searchParams带给服务器
    this.getData();
  },
  computed: {
    //mapGetters里面的写法（没有开启命名空间）：传递数组  （开启命名空间）：函数形式，配置对象，对象
    ...mapGetters(["goodsList"]),
    isOne() {
      // return this.searchParams.order.split(":")[0] === "1";
      return this.searchParams.order.indexOf("1") != -1;
    },
    isTwo() {
      // return this.searchParams.order.split(":")[0] === "2";
      return this.searchParams.order.indexOf("2") != -1;
    },
    isAsc() {
      return this.searchParams.order.indexOf("asc") != -1;
    },
    isDesc() {
      return this.searchParams.order.indexOf("desc") != -1;
    },
    //获取search模块展示产品一共有多少数据
    ...mapState({
      total: (state) => state.search.searchList.total,
    }),
  },
  methods: {
    //向服务器发请求获取search模块数据（根据参数不同返回不同的数据进行展示）
    //把这次请求封装为一个函数，当需要使用的时候调用即可
    getData() {
      this.$store.dispatch("getSearchListInfo", this.searchParams);
    },
    //删除分类的名字
    removeCategoryName() {
      //把带给服务器的参数置空了，还需要向服务器发请求
      //带给服务器参数说明可有可无的：如果属性值为空的字符串还是会把相应的字段带给服务器
      //但是你把相应的字段变为undefined，当前这个字段不会带给服务器
      this.searchParams.categoryName = undefined;
      this.searchParams.category1Id = undefined;
      this.searchParams.category2Id = undefined;
      this.searchParams.category3Id = undefined;
      // this.getData();
      //地址栏也需要需改：进行路由跳转(现在的路由跳转只是跳转到自己这里)
      //严谨：本意是删除query，如果路径当中出现params不应该删除，路由跳转的时候应该带着
      this.$router.push({ name: "search", params: this.$route.params });
    },
    //删除关键词
    removeKeyword() {
      this.searchParams.keyword = undefined;
      this.$router.push({ name: "search", query: this.$route.query });
      // this.getData();
      //通知兄弟组件Header清除关键词
      this.$bus.$emit("clear");
    },
    //收集品牌信息的回调（自定义事件）
    trademarkInfo(trademark) {
      //整理品牌参数，id:name
      this.searchParams.trademark = `${trademark.tmId}:${trademark.tmName}`;
      //发请求获取数据
      // this.getData();
    },
    //删除品牌信息
    removeTrademark() {
      //将品牌信息置空
      this.searchParams.trademark = undefined;
      //再次发请求
      // this.getData();
    },
    //收集平台属性的回调（自定义事件）
    attrInfo(attr, attrVal) {
      // ["属性ID:属性值:属性名"]
      let props = `${attr.attrId}:${attrVal}:${attr.attrName}`;
      //数组去重
      if (this.searchParams.props.indexOf(props) == -1) {
        this.searchParams.props.push(props);
        // this.getData();
      }
    },
    //删除平台属性
    removeAttr(index) {
      //再次整理参数
      this.searchParams.props.splice(index, 1);
      // this.getData();
      // console.log(index);
    },
    //排序
    changeOrder(flag) {
      //flag形参：代表是综合（1）还是价格（2）

      //自己用if判断写的  暂时没bug 但是排序多了会很麻烦
      /**
       if (flag == 2) {
        let originFlag = 2;
        let originSort = "desc";
        if (this.searchParams.order.split(":")[1] == "desc") {
          originSort = "asc";
        } else {
          originSort = "desc";
        }
        let order = `${originFlag}:${originSort}`;
        return (this.searchParams.order = order);
      } else {
        let originFlag = 1;
        let originSort = "desc";
        if (this.searchParams.order.split(":")[1] == "desc") {
          originSort = "asc";
        } else {
          originSort = "desc";
        }
        let order = `${originFlag}:${originSort}`;
        return (this.searchParams.order = order);
      }
       */

      //老师的方法  多个适用
      let originOrder = this.searchParams.order;
      //从这里获取到的是最开始的状态
      let originFlag = originOrder.split(":")[0];
      let originSort = originOrder.split(":")[1];
      //准备一个新的order属性值
      let newOrder = "";
      //判断
      if (flag == originFlag) {
        newOrder = `${originFlag}:${originSort == "desc" ? "asc" : "desc"}`;
      } else {
        newOrder = `${flag}:${"desc"}`;
      }
      this.searchParams.order = newOrder;
    },
    //获取当前页数（自定义事件）
    getPageNo(pageNo) {
      console.log(pageNo);
      this.searchParams.pageNo = pageNo;
    },
  },
  //数据监听：监听组件实例身上的属性的属性值变化
  watch: {
    //监听属性
    $route(newValue, oldValue) {
      //每一次请求完毕，应该把相应的1、2、3级分类的id置空，接受下一次的id
      //每次路由发生变化都会覆盖名字和关键字
      this.searchParams.category1Id = "";
      this.searchParams.category2Id = "";
      this.searchParams.category3Id = "";
      Object.assign(this.searchParams, this.$route.query, this.$route.params);
      this.getData();
    },
    //数据发生改变 发送请求
    searchParams: {
      deep: true,
      handler() {
        this.getData();
      },
    },
  },
};
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      .page {
        width: 733px;
        height: 66px;
        overflow: hidden;
        float: right;

        .sui-pagination {
          margin: 18px 0;

          ul {
            margin-left: 0;
            margin-bottom: 0;
            vertical-align: middle;
            width: 490px;
            float: left;

            li {
              line-height: 18px;
              display: inline-block;

              a {
                position: relative;
                float: left;
                line-height: 18px;
                text-decoration: none;
                background-color: #fff;
                border: 1px solid #e0e9ee;
                margin-left: -1px;
                font-size: 14px;
                padding: 9px 18px;
                color: #333;
              }

              &.active {
                a {
                  background-color: #fff;
                  color: #e1251b;
                  border-color: #fff;
                  cursor: default;
                }
              }

              &.prev {
                a {
                  background-color: #fafafa;
                }
              }

              &.disabled {
                a {
                  color: #999;
                  cursor: default;
                }
              }

              &.dotted {
                span {
                  margin-left: -1px;
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  font-size: 14px;
                  border: 0;
                  padding: 9px 18px;
                  color: #333;
                }
              }

              &.next {
                a {
                  background-color: #fafafa;
                }
              }
            }
          }

          div {
            color: #333;
            font-size: 14px;
            float: right;
            width: 241px;
          }
        }
      }
    }
  }
}
</style>